/*
 * Copyright 2022 Deep Learning on Flink Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.flinkextended.flink.ml.cluster.statemachine;

/** state machine transition exception. */
public class InvalidStateTransitionException extends Exception {

    private static final long serialVersionUID = 8610511635996283691L;

    private Object currentState;
    private Object event;

    public InvalidStateTransitionException(Object currentState, Object event) {
        super("Invalid event: " + event + " at " + currentState);
        this.currentState = currentState;
        this.event = event;
    }

    public Object getCurrentState() {
        return currentState;
    }

    public Object getEvent() {
        return event;
    }

    @Override
    public String toString() {
        return "InvalidStateTransitionException{"
                + "currentState="
                + currentState
                + ", event="
                + event
                + '}';
    }
}
